Reconnect the battery, plug in the AC adapter, and power the laptop back on. 2. Enable TPM in the BIOS
If you are trying to install a custom OS "repack" or a bypass (like bypassing Windows 11 TPM checks), ensure your BIOS is set to UEFI boot mode instead of Legacy. TPM 2.0 strictly requires UEFI and a 64-bit architecture to register correctly within Windows. dell vostro 5568 tpm device not detected repack